add hotkeys
调整slider ui及js，使之滑动更精确
Merge pull request #64 from gogoyqj/master

by qianjun;finish progressbar skin,add circle bar...
Merge pull request #65 from shirlyLoveU/master

调整slider ui及js，使之滑动更精确
添加对mousewheel的支持
update avalon ms-attr-*
by qianjun;finish switch skin
Merge branch 'master' of https://github.com/RubyLouvre/avalon.oniui.git